PK80590: FDBR TRIES TO ALLOCATE "A" SIDE INSTEAD OF ACTIVE "M" SIDE DATA SET DURING DYNAMIC BACKOUT AFTER AN EARLIER OLR.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Ran OLR for S83A001 (A -> M). Then started a BMP A460412A to
  update S83A001 with PSB FC5280. Put the BMP into a hold with
  an WTOR and then cancelled IN01CTL. FDBR wanted to backout the
  uncommitted updates from the BMP and abended trying to allocate
  the allocate the A-dataset instead of the active M-Dataset
  
  PK61511 is on ....
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IMS V11 HALDB users running Online       *
  *                 Reorganization ( OLR ) with FDBR tracking    *
  *                 the active IMS.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: After a CTL region failure / abend on   *
  *                      the active IMS while updates are being  *
  *                      made to a HALDB partition that had      *
  *                      previously been successfully OLR'ed,    *
  *                      the tracking FDBR region failed during  *
  *                      dynamic backout processing trying to    *
  *                      allocate the A-J data sets when the     *
  *                      M-V data sets were active.              *
  ****************************************************************
  * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
  ****************************************************************
  The tracking FDBR region failed with the following:
  
  DFS2503W DYNAMIC ALLOCATION   FAILED FOR
  (DFS2503W) DATASET NAME XXX.YYYY.ZZZZZZZZ.A00001
  (DFS2503W) DATABASE AAAAAAA  WITHIN PSB BBBBBB   REASON
             CODE 1708
  DFS629I IMS CTL TCB DUMP  - TYPE UNK
  DFS629I PSW AT ERROR = *** NO SDWA ***
  DFS3932I IMS DUMP REQUEST COMPLETED - RETURN CODE = 000
  DFS984I UNABLE TO OPEN DATA BASE AAAAAAA , PROGRAM BBBBBB
          FOR BACKOUT.
  DFS979I BATCH MESSAGE PROGRAM BBBBBB   WAS ACTIVE AT TIME OF
          FAILURE.
  DFS981I  DBD=AAAAAAA  WITHIN PSB=BBBBBB   STOPPED DUE TO BACKOUT
           FAILURE.
  
  A successful OLREORG had completed on the active IMS prior
  to the active IMS abend and the active OLR data sets for the
  partition being backed out was the M-V data sets, but during
  the backout processing in the FDBR region, an attempt was made
  to allocate the A-J data sets instead.
  
  The failure occurs because the DDIRADDR field ( DMB address ) in
  the DDIR was zero.  There is code in module DFSRDBP0 to skip
  trying to find the SMB and PDIR when processing the x'08' log
  record which caused the scheduling of the PSB to also
  be skipped.   Because the PSB was not scheduled, DFSPSM10 was
  not called to load and initialize the partition structure.
  When the backout was attempted later, fields in the DDIR
  had not been initialized, causing the failure to occur.
  
  This problem only occurs for HALDB when an OLR had previously
  been run for the partition.
  
  Additional Keywords: OLREORG MSGDFS2503W MSGDFS984I
                       MSGDFS981I LOG08 TYPE08.
  

Problem conclusion

• GEN:
  KEYWORDS:
  
  *** END IMS KEYWORDS ***
  The following module has been modified to correct the reported
  problem:
  
  ************
  * DFSRDBP0 *
  ************
  Code has been modified in the type08 log record processing to
  try to find the PDIR, even if it is the FDBR region, and to
  schedule the PSB when the PSB is for OLR.
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PK79879

• APAR is sysrouted TO one or more of the following:

  UK44856

Modules/Macros

• DFSRDBP0
  

Fix information

• Fixed component name

  IMS V11

• Fixed component ID

  5635A0200

Applicable component levels

• R100 PSY UK44856

     UP09/03/17 P F903 Ž

Fix is available

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